Yoshifumi Zoka

Last Updated :2017/11/01

Affiliations, Positions
Graduate School of Engineering, Associate Professor
Web Site
E-mail
zohiroshima-u.ac.jp
Other Contact Details
1-4-1 KAGAMIYAMA, HIGASHIHIROSHIMA, Japan
TEL : (+81)82-424-7667 FAX : (+81)82-424-3586

Basic Information

Major Professional Backgrounds

  • 2007/06/01, Hiroshima University, Graduate School of Engineering, Associate Professor
  • 2007/04/01, 2007/05/31, Hiroshima University, Graduate School of Engineering, Assistant Professor
  • 2002/06/04, 2003/05/29, University of Washington, School of Engineering, Visiting Research Associate
  • 2001/04/01, 2007/03/31, Hiroshima University, Graduate School ofEngineering, Research Associate
  • 1997/04/01, 2001/03/31, Hiroshima University, Faculty of Engineering, Research Associate

Educational Backgrounds

  • Hiroshima University, Graduate School, Division of Engineering, System Engineering, Japan, 1995/04, 1997/03
  • Hiroshima University, Faculty of Engineering, Japan, 1989/04, 1993/03

Academic Degrees

  • Dr. Eng., Hiroshima University
  • Master of Engineering, Hiroshima University

In Charge of Primary Major Programs

  • Electrical and Electronic Engineering

Research Fields

  • Engineering;Electrical and electronic engineering;Power engineering / Power conversion / Electric machinery

Affiliated Academic Societies

  • The Institute of Electrical and Electronics Engineers, 1999
  • Institute of Electric Engineers of Japan, 1993
  • The Institute of Electrical Installation Engineers of Japan
  • Japan Society of Energy and Resources

Educational Activity

Course in Charge

  1. 2017, Undergraduate Education, 3Term, Introduction to Applications of Energy and information systems
  2. 2017, Undergraduate Education, 4Term, Introduction to Technologies of Energy and information systems
  3. 2017, Undergraduate Education, Second Semester, Electric Circuit Theory I
  4. 2017, Undergraduate Education, Second Semester, High-voltage Engineering
  5. 2017, Undergraduate Education, Second Semester, Power System Engineering
  6. 2017, Undergraduate Education, Second Semester, Regulations for Electrical Facilities
  7. 2017, Graduate Education (Master's Program) , First Semester, Electric Power System Operation
  8. 2017, Graduate Education (Master's Program) , Year, Directed Study in System Cybernetics I
  9. 2017, Graduate Education (Master's Program) , Year, Directed Study in System Cybernetics II
  10. 2017, Graduate Education (Master's Program) , Year, Seminar in System Cybernetics I
  11. 2017, Graduate Education (Master's Program) , Year, Seminar in System Cybernetics II
  12. 2017, Graduate Education (Master's Program) , First Semester, Special Lecture on System Cybernetics V

Award of Education

  1. 2013/12/12, Gracduate School of Engineering

Research Activities

Academic Papers

  1. A Study on the Power System Security under Future Uncertainties An Examination based on the Robust Power System Security, ELECTRICAL ENGINEERING IN JAPAN, 197(1), 15-25, OCT 2016
  2. Efficiency Analysis of SiC-MOSFET-Based Bidirectional Isolated DC/DC Converters, IEICE TRANSACTIONS ON ELECTRONICS, E99C(9), 1065-1070, SEP 2016
  3. An On-Demand Generation Regulation for Small Independent Power Grids with a Selective Control, IFAC and CIGRE/CIRED Workshop on Control of Transmission and Distribution Smart Grids
  4. An Optimal Autonomous Decentralized Control Method for Voltage Control Devices by Using a Multi-Agent System, IEEE TRANSACTIONS ON POWER SYSTEMS, 30(5), 2225-2233, SEP 2015
  5. A New Method of Evaluating Robust Power System Security against Uncertainties, IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 10(6), 636-643, NOV 2015
  6. A Novel Control Scheme of Voltage Source PWM Inverters for Improving Power System Stability,, IEEJ P&ES Symposium on Advanced Technology in Power Systems 2014, 1-6, 2014
  7. Basic theory and methodology development of highly accurate simulation technology for power systems incorporating device-level modeling of the applied power electronics,, JST-NSF-DFG Joint Workshop, 2014
  8. Robust Method for Detection of CUEP in Power Systems,, IEEJ Trans. on Power and Energy, 134(2), 162-169, 2014
  9. Issues for power system operation for future renewable energy penetration: Robust power system security, ELECTRICAL ENGINEERING IN JAPAN, 182(1), 30-38, JAN 15 2013
  10. Feasible solution for dynamic economic load dispatch using feasible operation region, IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 8(2), 116-122, MAR 2013
  11. A Study of Reallocation Planning for Section Switches Considering Employment Cost and Intermittent Renewable Energy, ELECTRICAL ENGINEERING IN JAPAN, 184(2), 36-43, JUL 30 2013
  12. Security issues for mega penetration of photovoltaic power generation in future electric power systems. A case study of stability for power swing oscillation using the IEEJ WEST 10-machine model, ELECTRICAL ENGINEERING IN JAPAN, 184(3), 1-13, AUG 2013
  13. An Application of Critical Trajectory Method to BCU Problem for Transient Stability Studies, IEEE TRANSACTIONS ON POWER SYSTEMS, 28(4), 4237-4244, NOV 2013
  14. A Real-time Robust Dynamic ELD against Uncertainties of Renewable Energy Sources,, 2013 ISGT Innovative Smart Grid Technologies (ISGT), 1-5, 2013
  15. An On-demand Generation Regulation Control For Small Independent Power Grids With Effective EV Charging Control, 2013 UPEC 48th international Universities Power Engineering Conference (UPEC), 1-6, 2013
  16. Dynamic Load Dispatch For Power System Robust Security Against Uncertainties,, 2013 IREP Symposium-Bulk Power System Dynamics and Control ?IX (IREP), 2013
  17. Robust method for detection of CUEP for Power System Transient Stability Screening,, 2013 ISGT Innovative Smart Grid Technologies (ISGT), 1-5, 2013
  18. Robust Power System Security - Necessity of New Concept for Power System Security to Deal with Uncertainties of Renewable Energy Generations,, 2013 EPCC The 12th International Workshop on Electric Power Control Centers (EPCC), 2013
  19. High-Speed Real-Time Dynamic Economic Load Dispatch, IEEE TRANSACTIONS ON POWER SYSTEMS, 27(2), 621-630, MAY 2012
  20. A direct method for obtaining critical clearing time for transient stability using critical generator conditions, EUROPEAN TRANSACTIONS ON ELECTRICAL POWER, 22(5), 674-687, JUL 2012
  21. Feasible operation region for dynamic economic dispatch and reserve monitoring, EUROPEAN TRANSACTIONS ON ELECTRICAL POWER, 22(7), 924-936, OCT 2012
  22. Expected Security Cost-Based FACTS Device Allocation Using Hybrid PSO, IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 6(4), 331-337, JUL 2011
  23. FACTS Devices Allocation With Control Coordination Considering Congestion Relief and Voltage Stability, IEEE TRANSACTIONS ON POWER SYSTEMS, 26(4), 2302-2310, NOV 2011
  24. A Study on the Effect of Generation Shedding to Total Transfer Capability by Means of Transient Stability Constrained Optimal Power Flow, IEEE TRANSACTIONS ON POWER SYSTEMS, 24(1), 347-355, FEB 2009
  25. Application of Multi-Objective Evolutionary Optimization Algorithms to Reactive Power Planning Problem, IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 4(5), 625-632, SEP 2009
  26. Fast Computation of Thermal Capacity and Voltage TAC by Means of Homotopy Functions, ELECTRONICS AND COMMUNICATIONS IN JAPAN, 92(3), 17-23, MAR 2009
  27. Sensitivity analysis to operation margin of zone 3 impedance relays with bus power and shunt susceptance, IEEE TRANSACTIONS ON POWER DELIVERY, 23(1), 102-108, JAN 2008
  28. A Design for Robust Power System Stabilizer by Means of H-infinity Control and Particle Swarm Optimization Method, ELECTRONICS AND COMMUNICATIONS IN JAPAN, 91(8), 34-43, AUG 2008
  29. Multi-load level reactive power planning considering slow and fast VAR devices by means of particle swarm optimisation, IET GENERATION TRANSMISSION & DISTRIBUTION, 2(5), 743-751, SEP 2008
  30. An Economic Evaluation for an Autonomous Independent Network of Distributed Energy Resources, Electric Power Systems Research, 77(7), 831-838, 20070701
  31. Operation margin analysis of zone 3 impedance relay based on sensitivities to power injection, IET Proc. Generation, Transmission & Distribution, 1(2), 312-317, 20070301
  32. Controllability Analysis for Operation Margin of Zone 3 Impedance Relay, IEEJ Trans. PE, 127(3), 502-506, 20070401
  33. An economic evaluation for an autonomous independent network of distributed energy resources, ELECTRIC POWER SYSTEMS RESEARCH, 77(7), 831-838, MAY 2007
  34. Operation margin analysis of zone 3 impedance relay based on sensitivities to power injection, IET GENERATION TRANSMISSION & DISTRIBUTION, 1(2), 312-317, MAR 2007
  35. A Design for Robust Power System Stabilizer by Means of H∞ Control and Particle Swarm Optimization Method, Trans. IEE of Japan, 126-B(7), 679-686, 20060701
  36. A Study on a New Distribution System Planning with Considering Distributed Generators Installation, Trans. IEE of Japan, 126-B(8), 789-797, 20060801
  37. An Economic Evaluation for an Autonomous Independent Network of Distributed Generators, Journal of the Institution of Engineers, Singapore, MECH & ELEC ENG.(SPECIAL ISSUE IPEC), 8.1-5, 20061201
  38. Validation of a New Outage Work Planning Method Based on System Configuration Searching Technique for Maintaining High Supply Reliability, Proceedings of International Conference on Electrical Engineering, SE1-03, 20060701
  39. A Mutual Interaction Problem of Distributed Generators Installed in an Autonomous Independent Small Grid, Proc. of the Renewable Energy 2006 International Conference and Exhibition, 1768-1771, 20061001
  40. A PSO Approach to VAR planning considering slow and fast devices prices, Proc. of the International IEEE Conference on Systems, Man, and Cybernetics, 3, 1849-1854, 20061008
  41. Feature extraction of AR as a performance index for load frequency controls of interconnected power systems, ELECTRICAL ENGINEERING IN JAPAN, 154(1), 20-28, JAN 15 2006
  42. A Proposal of a New Method for Outage Work Planning Treated as a System Combination Problem Pursuing High Supply Reliability, Trans. IEE of Japan, 125-B(1), 90-96, 20050101
  43. An Economic Evaluation for an Autonomous Independent Network of Distributed Generators, Proceedings of the International Power Engineering Conference (IPEC2005), 20051201
  44. A Study on Distribution Network Planning with Considering Ancillary Service Costs of Distributed Generators, Proceedings of International Conference on Electrical Engineering, SP1-03, ICEE-F0241, 20050701
  45. A Proposal of a New Method for Outage Work Planning Treated as a System Combination Problem Pursuing High Supply Reliability, Proceedings of the International Conference on Electrical Engineering, SP1-05, ICEE-F0256, 20050701
  46. A Study on Distribution Network Planning with Considering Customer's Utilization of Distributed Generators, Proceedings of the IEEE International Symposium on Circuits and Systems, C2L-F.1, 20050701
  47. An Optimal Operation and Capacity Planning with an Efficient Coordination between Distributed Generators and Energy Storage Systems, The Journal of the Institute of Electrical Installation Engineers of Japan, 24(10), 796-803, 20041001
  48. An interaction problem of distributed generators installed in a MicroGrid, Proceedings of the International Conference on Electric Utility Deregulation and Restructuring= and Power Technologies, PAPER NO. 174, 20040401
  49. A New Distribution Network Planning with Considering Distributed Generator Installation and Network Operation Cost, Proceedings of the International Conference on Electrical Engineering, OA7-1, 20040401
  50. Feature Extraction of AR as a Performance Index for Load Frequency Controls of Interconnected Power Systems, Trans. IEE of Japan, 124-B(11), 1286-1292, 20041101
  51. Construction of an Automatic Drawing System for Power System Diagram by Using GA, IEEJ Trans. PE, 123(8), 927-934, 20030801
  52. A Study on The Effect of Permanent Outage Rates of Interconnection Tie Line on Well-being Indices for Multi Area System, Proceedings of International Conference on Electrical Engineering, 1, 389-393, 20010601
  53. A Culculation Method of LOLP for Multi Area System Considering FOR Uncertainties of Generating System, Tie Line and Load Forecasting, Bulletin of the Graduate School of Engineering= Hiroshima University, 50(1), 29-34, 20010401
  54. An Optimal Operation Planning for Fuel Cells and Energy Storage Systems with Their Capacity Estimations, Bulletin of the Graduate School of Enginnering= Hiroshima University, 50(1), 21-27, 20010401
  55. An optimal deployment of fuel cells to distribution systems by means of improved genetic algorithm, International Journal of English Studies, 9(3), 165-172, 20010901
  56. Construction of a supporting system for identifying power apparatuses to be de-energized, The Journal of the Institute of Electrical Installation Engineers of Japan, 21(12), 1015-1022, 20011201
  57. Evaluation of well-being indices of multi area system by considering permanent outage rates on interconnected tie lines, Proceedings of the International Conference on Electrical Engineering 2004 (ICEE2004), 1, 389-393, 20010401
  58. An optimal deployment of fuel cells to distribution systems by means of improved genetic algorithms, ENGINEERING INTELLIGENT SYSTEMS FOR ELECTRICAL ENGINEERING AND COMMUNICATIONS, 9(3), 165-172, SEP 2001
  59. A Study of Allocation Planning of Dispersed Electrical and Thermal Energy Systems into Distribution Networks - Optimal operation Planning, Proceedings of the Fourth International Conference on Power System Technology, 1, 43-47, 20001201
  60. The Evaluation of Confidence Limit on LOLP for Multi Area System, Proceedings of the International Conference on Electric Utility Deregulation and Restructuring= and Power Technologies, 111-117, 20000401
  61. The Investigation of the Expectation and Variance of LOLP of Multi Area System, Proceedings of the 13th Conference on the Electric Power Supply Industry, 115-121, 20000801
  62. The well-being indices evaluation on the multi area system, Proceedings of International Conference on Electrical Engineering, 219-222, 20000601
  63. A Study of Outage Works Allocation by Means of Agent Technology, Proceedings of the Fourth International Conference on Power System Technology, 369-373, 20001201
  64. Construction of Automatic Drawing System for Power System Diagram by Using GA, Proceedings of the Fourth International Conference on Power System Technology, 497-502, 20001201
  65. A Study of Allocation Planning of Electrical and Thermal Energy Systems in Distribution Networks - Optimal Operation Planning, Proceedings of The 1st International Workshop on Systems Technology for Unbundled Power Quality Services, 20000401
  66. An Optimal Deployment Planning of Fuel Cells and Power Storage Systems into Distribution Networks Considering Optimal Operation and Capacity Sizing, Proceedings of the 4th International Meeting on Systems Technologies for Unbundled Power Quality Services, 20000401
  67. Application of GA to Determining Network Configurations for Outage Works by EOSPF+TS Method, IEEJ Trans. PE, 120(7), 962-967, 20000701
  68. An Application of Tabu Search to Problem of Constructing Network Configuration for Outage Works Considering N-1 Security, IEEJ Trans. PE, 119(6), 720-726, 19990601
  69. A Distribution System Simulator for Interconnection of Dispersed Power Sources, Proceedings of the International Power Engineering Conference, II, 509-514, 19990501
  70. A Study of Network Configuration for Outage Works by Applying Tabu Search And Genetic Algorithm to Optimal Switching Power Flow, Proceedings of the International Power Engineering Conference, II, 814-819, 19990501
  71. An Optimal Deployment Planning of Fuel Cells into A Distribution Network Considering Optimal Capacity Sizing, Proceedings of the 3rd International Meeting on Systems Technologies for Unbundled Power Quality Services, 19990401
  72. An Optimal Deployment Planning of Fuel Cells and Power Storage Systems into A Distribution Network, Proceedings of the 2nd International Meeting on Systems Technologies for Unbundled Power Quality Services, 19990401
  73. An Application of a Rule Based System to the Coordination of Protective Relays Considering the Sequence of Relay, The Journal of the Institute of Electrical Installation Engineers of Japan, 18(10), 714-721, 19981001
  74. An Investigation of Load Flow Methods for Radial Distribution Networks, Proceedings of the Australasian Universities Power Engineering Conference, 1, 235-240, 19980901
  75. A Study on Determining the Combination of Outage Works by Power Supply Indices, Proceedings of International Conference on Electrical Engineering, 2, 326-329, 19980801
  76. A Study on Evaluating Power Supply Reliability in Outage Planning of Electric Power Facilities, Proceedings of the 13th Conference on the Electric Power Supply Industry, 11, 36-42, 19980801
  77. An Optimal Deployment of Fuel Cells in Distribution Systems by Means of A Genetic Algorithm, IEEJ Trans. PE, 117(8), 1109-1114, 19970801
  78. A Study on A Genetic Algorithm for Optimal Deployment Problem of Fuel Cells in Large Distribution Systems, Proceedings of the International Conference on Intelligent System Application to Power Systems, 618-622, 19970601
  79. A Distribution System Simulator for Interconnection of Dispersed Power Sources, Proceedings of the International Power Engineering Conference, 142-147, 19970401
  80. An Optimal Deployment of Fuel Cells in Distribution Systems by Using Genetic Algorithms, Proceedings of the IEEE International Conference on Evolutionary Computation, 479-484, 19951101
  81. An Optimal Deployment of Fuel Cells in A Distribution System by Means of A Genetic Algorithm, Proceedings of International Conference on Intelligent System Application to Power Systems, 1, 153-160, 19940401
  82. A Study on Optimal Placement Problem of Fuel Cells into Distribution Systems, IEEJ Trans. PE, 114(5), 491-497, 19940501

Publications such as books

  1. 2003/12, Autonomous Systems and Intelligent Agents in Power System Control and Operation (Chapter 12) , Springer, 2003, 12, en, Yoshifumi Zoka, Hao Li, Chen-Ching Liu , 3540402020, 305
  2. 2005/11/10, The new technology for power system operation under competitive environment , The Institute of Electrical Engineers of Japan (IEEJ), 2005, 11, jp, Investigation R&D Committee on new technology of power system operation under competitive environment, 155
  3. 2007/09/15, Analysis and Operation Technologies for Power System Utilization , The Institute of Electrical Engineers of Japan (IEEJ), 2007, 9, jp, Investigating R&D Committee on Analysis and Operation Technologies for Power System Utilization, 129
  4. 2010/11/30, Restoration of power system, The Institute of Electrical Engineers of Japan (IEEJ), 2010, 11, jp, Investigating R&D Committee on Restoration of power system, 85
  5. 2011/02/15, System technology to realize smart utilization of power systems, The Institute of Electrical Engineers of Japan (IEEJ), 2011, 2, jp, Investigating R&D Committee on system technology to realize smart utilization of power syste, 82
  6. 2011/07/25, Current Status of Advanced Power Systems including Micro grid and Smart grid, The Institute of Electrical Engineers of Japan (IEEJ), 2011, 7, jp, Investigating R&D Committee on advanced power system, 107
  7. 2012/11/30, The data acquisition and distribution scheme of power system operation, The Institute of Electrical Engineers of Japan (IEEJ), 2012, 11, jp, Investigating R&D Committee on The data acquisition and distribution scheme of power system operation, 72
  8. 2014/12/15, Load Dispatching Operation of Power System and Meteorological Information, The Institute of Electrical Engineers of Japan (IEEJ), 2014, 12, jp, Investigating R & D Committee on Load Dispatching Operation of Power System and Meteorological Information, 73

Invited Lecture, Oral Presentation, Poster Presentation

  1. Present situation of Japanese power system and an outline of recent research activities, Yoshifumi Zoka, 5th International Symposium on Advanced Control of Industrial Processes (ADCONIP), 2014/05/29, With Invitation
  2. Distribution system voltage control and pseudo-synchronous power PCS for HAPRS Project, Yoshifumi Zoka, 2016 JST-NSF-DFG-RCN Workshop on Distributed Energy Management Systems, 2016/05/23, Without Invitation, Deutsche Forschungsgemeinschaft, Heidelberg, Germany
  3. Present Situation of Japanese Power System and New Movements Toward Smart Cities, Yoshifumi Zoka, Workshop on System and Control Perspectives for Smart City, 2015/12/13, With Invitation, Hiroshima, Japan

Patented

  1. Patent, JP4341034, 2009/07/17
  2. Patent, JP4771317, 2011/07/01
  3. Patent, JP5370842, 2013/09/27
  4. Patent, JP5493170, 2014/03/14
  5. Patent, JP5555929, 2014/06/13

Social Activities

History as Committee Members

  1. Investigating R&D Committee on Analysis and Operation Technologies for Power System Utilization, 2005/10, 2007/03, The Institute of Electrical Engineers of Japan (IEEJ)
  2. Investigating R&D Committee on system technology to realize smart utilization of power syste, 2008/09, 2010/09, The Institute of Electrical Engineers of Japan (IEEJ)
  3. Investigating R&D Committee on advanced power system, 2009/01, 2010/12, The Institute of Electrical Engineers of Japan (IEEJ)
  4. Vice Chairperson, Editorial Committee, Power and Energy Society, 2016/06/01, 2017/05/31, The Institute of Electrical Engineers of Japan (IEEJ)
  5. Board of Society (Editorial Affairs), Power and Energy Society, The Institute of Electrical Engineers of Japan, 2016/06/01, 2017/05/31, The Institute of Electrical Engineers of Japan (IEEJ)